2542217807 has 16 divisors (see below), whose sum is σ = 2772584640. Its totient is φ = 2323571712.

The previous prime is 2542217771. The next prime is 2542217813. The reversal of 2542217807 is 7087122452.

It is a cyclic number.

It is not a de Polignac number, because 2542217807 - 2¹⁴ = 2542201423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2542217857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45053 + ... + 84345.

It is an arithmetic number, because the mean of its divisors is an integer number (173286540).

Almost surely, 2^2542217807 is an apocalyptic number.

2542217807 is a deficient number, since it is larger than the sum of its proper divisors (230366833).

2542217807 is a wasteful number, since it uses less digits than its factorization.

2542217807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39442.

The product of its (nonzero) digits is 62720, while the sum is 38.

The square root of 2542217807 is about 50420.4106191134. The cubic root of 2542217807 is about 1364.8059865496.

The spelling of 2542217807 in words is "two billion, five hundred forty-two million, two hundred seventeen thousand, eight hundred seven".